13221341297 has 2 divisors, whose sum is σ = 13221341298. Its totient is φ = 13221341296.

The previous prime is 13221341261. The next prime is 13221341359. The reversal of 13221341297 is 79214312231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8326380001 + 4894961296 = 91249^2 + 69964^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221341297 - 2⁶ = 13221341233 is a prime.

It is not a weakly prime, because it can be changed into another prime (13221341207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610670648 + 6610670649.

It is an arithmetic number, because the mean of its divisors is an integer number (6610670649).

Almost surely, 2^13221341297 is an apocalyptic number.

It is an amenable number.

13221341297 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221341297 is an equidigital number, since it uses as much as digits as its factorization.

13221341297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The spelling of 13221341297 in words is "thirteen billion, two hundred twenty-one million, three hundred forty-one thousand, two hundred ninety-seven".